**Important Questions for Class 12 Computer Science (C++) – Boolean Algebra**

### Previous Years Examination Questions [TOPIC 1]

1 Mark Questions

**Question 1:**

Derive a Canonical POS expression for a Boolean function G, represented by the following truth table: **All India 2017**

**Answer:**

**Question 2:**

Derive a canonical POS expression for a Boolean function F, represented by the following truth table: **Delhi 2016**

**Answer:**

**Question 3:**

Derive a canonical SOP expression for a boolean function G, represented by the following truth table: **All India 2016**

**Answer:**

**Question 4:**

Derive a canonical SOP expression for boolean function F, represented by the following truth table: **Delhi 2015**

**Answer:**

**Question 5:**

Derive a canonical POS expression for a boolean function F, represented by the following truth table:** All India 2015**

**Answer:**

**Question 6:**

Convert the following Boolean expression into its equivalent canonical sum of products (SOP) form:

**Answer:**

**Question 7:**

Write the Sum of Product form of the function F (P,Q,R) for the following truth table representation of F: **Delhi 2014**

**Answer:**

**Question 8:**

Write the Product of Sum form of the function F(X, Y, Z) for the following truth table representation of F: **All India 2014**

**Answer:**

**Question 9:**

Write the Product of Sum form of the function G(U, V, W) for the following truth table representation of G: **Delhi 2013**

**Answer:**

**Question 10:**

Write the Product of Sum form of the function G(U,V,W) for the following truth table representation of G: **Delhi 2013C**

**Answer:**

**Question 11:**

Write the Sum of Product form of the function F (A, B, C) for the following truth table representation of F: **All India 2013**

**Answer:**

**Question 12:**

Write the POS form of boolean function G, which is represented in a truth table as follows: **Delhi 2012**

**Answer:**

**Question 13:**

Write the SOP form of boolean function F, which is represented in a truth table as follows: **All India 2012**

**Answer:**

**Question 14:**

Write the POS form of a boolean function F, which is represented in a truth table as follows: **Delhi 2011**

**Answer:**

**Question 15:**

Write the SOP form of a boolean function F, which is represented in a truth table as follows: **All India 2011**

**Answer:**

**Question 16:**

Write the SOP form of a boolean function F, which is represented in a truth table as follows: **Delhi (c) 2011**

**Answer:**

**Question 17:**

Write the POS form of boolean function H, which is represented in a truth table as follows: **Delhi 2010**

**Answer:**

**Question 18:**

Write the SOP form of boolean function G, which is represented in a truth table as follows: **All India 2010**

**Answer:**

**Question 19:**

Write the POS form of a boolean function H, which is represented in a truth table as follows: **Delhi 2009**

**Answer:**

**Question 20:**

Write the POS form of a boolean function G, which is represented in a truth table as follows: **All India 2009**

**Answer:
**

### 2 Marks Questions

**Question 21:**

State DeMorgan’s Laws of Boolean Algebra and verify them using truth table. **All India 2017**

Or

State DeMorgan’s laws. Verify one of the DeMorgan’s laws using a truth table **Delhi 2013C**

Or

State and prove DeMorgan’s laws in boolean algebra. **Delhi 2011C,2009C
**

**Answer:**

**Question 22:**

Draw the Logic Circuit of the following Boolean Expression using only NOR Gates: **All india 2017**

(A+B). (C+D)

**Answer:**

**Question 23:**

Verify the following using boolean laws:

**Answer:**

**Question 24:**

Write the boolean expression for the result of the logic circuit as shown below:

**Answer:**

**Question 25:**

Verify the following using Boolean Laws:

**Answer:**

**Question 26:**

Write the boolean expression for the result of the Logic Circuit as shown below:

**Answer:**

**Question 27:**

Verify the following using boolean laws:

**Answer:**

**Question 28:**

Draw the logic circuit for the following boolean expression:

**Answer:**

**Question 29:**

Verify the following using boolean laws.

**Answer:**

**Question 30:**

Draw the logic circuit for the following boolean expression:

**Answer:**

**Question 31:**

State distributive law and verify it using truth table. **All India 2014C**

**Answer:**

**Question 32:**

Name the law shown below and verify it using a truth table.

**Answer:**

**Question 33:**

Obtain the boolean expression for the logic circuit shown below: **Delhi 2014**

**Answer:**

**Question 34:**

Name the law shown below and verify it using a truth table.

**Answer:**

**Question 35:**

Obtain the boolean expression for the logic circuit shown below: **All India 2014**

**Answer:**

**Question 36:**

Verify the following using boolean laws

**Answer:**

**Question 37:**

Verify the following using boolean laws

**Answer:**

**Question 38:**

Obtain the boolean expression for the logic circuit shown below:

**Answer:**

**Question 39:**

Draw a logic circuit for the following boolean expression.

**Answer:**

**Question 40:**

Obtain the boolean expression for the logic circuit shown below:.

**Answer:**

**Question 41:**

Verify the following boolean expression using truth table:

**Answer:**

**Question 42:**

Write the equivalent boolean expression for the following logic circuit:

**Answer:**

**Question 43:**

Verify the following boolean expression using truth table:

**Answer:**

**Question 44:**

Write the equivalent boolean expression for the following logic circuit:

**Answer:**

**Question 45:**

Verify the following boolean expression using truth table:

**Answer:**

**Question 46:**

Write the equivalent boolean expression for the following logic circuit:

**Answer:**

**Question 47:**

Verify the following boolean expression using truth table:

**Answer:**

**Question 48:**

Write the equivalent boolean expression for the following logic circuit:

**Answer:**

**Question 49:**

Write the equivalent boolean expression for the following logic circuit:

**Answer:**

**Question 50:**

Write the equivalent boolean expression for the following logic circuit:

**Answer:**

**Question 51:**

Verify the following algebraically:

**Answer:**

**Question 52:**

Verify the following algebraically:

**Answer:**

**Question 53:**

Write the equivalent boolean expression for the following logic circuit:

**Answer:**

**Question 54:**

Write the equivalent boolean expression for the following logic circuit:.

**Answer:**

**Question 55:**

**Answer:**

**Question 56:**

Write the equivalent boolean expression for the following logic circuit:

**Answer:**

**Question 57:**

**Answer:**

**Question 58:
**State and verify absorption law in boolean algebra.

**All India 2009**

**Answer:**

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